Author: Dave Gomboc
Date: 02:19:11 05/23/99
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On May 22, 1999 at 21:51:18, Chuck wrote: >On May 22, 1999 at 20:59:35, Mark Young wrote: > >>In the game played today with GM Rohde's we have another example of Rebel 10's >>tactical blindness with its 26th move f4. This is just the latest example of >>Rebel 10's tendancy to miss tactics that other programs understand with ease. I >>understand that all programs miss some tactics from time to time, but Rebel 10's >>frequency of tactical blindness is perplexing to me. It misses stuff that other >>programs see in seconds, even after playing a blunder its evaluation my not drop >>for many moves before understanding the danger. >> >>In the latest example I gave the position to Rebel 9, it had no problem seeing >>that both 26. f4 and Bxb7 lose quickly and playing the correct 26. Bg2 as other >>programs play. >> >>On the other hand even after the move 26 f4, Rebel 10 still think it has an >>advantage for almost 4 mins, before seeing the error of 26. f4. >> >>Is this tactical blindness a bug in Rebel 10, or a justifiable design choice to >>let rebel strengthen other areas of its play? > >Probably only Ed Schroder can answer your question, but I don't think that >Rebel 10 was that much out 'on it's own'. It takes Fritz 5 better than 2 minutes >on my AMD K6-2 350 to select Bg2 (I didn't officially time this). But Robert >Hyatt mentions that some strong players (GM's?) stated that White is lost after >Bg2 as well. I see that Bg2 relieves the threat of a Black Queen check on the >1st rank, or rather the mate threat involved there, and studying the position >from there I would hazard that White might hold. If someone gets any Grandmaster >analysis I would like to see it posted. Of course, I've lost games myself >following grandmaster analysis before, but as this game shows, it's still the >best opinion we have. > >Chuck I thought I saw someone post the win after Bg2 in one of the posts here. But I don't recall which, sorry. :-) You can scan through them if you are desperate, I guess. Dave Dave
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